Finding the Fourth Proportional to 14,166,277.98, 21,138,930.25 and 12,639,465.24
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Solution
The fourth proportional to 14,166,277.98, 21,138,930.25 and 12,639,465.24 is: 18,860,619.17
Step by Step Solution
- Step 1: Write the proportion equation
14,166,277.98 : 21,138,930.25 = 12,639,465.24 : x - Step 2: Convert to fraction form
14,166,277.98/21,138,930.25 = 12,639,465.24/x - Step 3: Cross multiply
14,166,277.98x = 21,138,930.25 × 12,639,465.24 - Step 4: Simplify right side
14,166,277.98x = 267,184,774,105,659.50 - Step 5: Solve for x
x = 267,184,774,105,659.50/14,166,277.98 - Step 6: Final answer
x = 18,860,619.17
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.